ant-design-vue/components/rate/Star.vue

<template>
  <li
    :class="getClassName"
    @click="onClick"
    @mousemove="onHover">
    <div :class="`${prefixCls}-first`"><slot></slot></div>
    <div :class="`${prefixCls}-second`"><slot></slot></div>
  </li>
</template>
<script>
export default {
  name: 'Star',
  props: {
    index: Number,
    disabled: Boolean,
    prefixCls: String,
    allowHalf: Boolean,
    value: Number,
  },
  computed: {
    getClassName () {
      const { prefixCls, index, value, allowHalf } = this
      const starValue = index + 1
      if (allowHalf && value + 0.5 === starValue) {
        return `${prefixCls} ${prefixCls}-half ${prefixCls}-active`
      }
      return starValue <= value ? `${prefixCls} ${prefixCls}-full` : `${prefixCls} ${prefixCls}-zero`
    },
  },
  methods: {
    onClick (e) {
      if (this.disabled) return
      this.$emit('click', e, this.index)
    },
    onHover (e) {
      if (this.disabled) return
      this.$emit('hover', e, this.index)
    },
  },
}
</script>